CONCENTRATING METHOD OF BANK LOAD

摘要

PURPOSE: To achieve the optimal application of a power distribution system by performing conditional setting when a bank load is concentrated for the harmonic countermeasure of the power distribution system. CONSTITUTION: The harmonic voltage En of the primary side of a distribution transformer and the harmonic voltage Vn and the harmonic current In of the secondary side of the distribution transformer are measured to compute the harmonic system impedance of each of banks BK1 , BK2 , and when either of the rise of a system fundamental harmonic voltage or the rise of a harmonic voltage is expected with the countermeasure against the concentration of a bank load, priority is given to the safety of the system and the concentration of the bank load is not performed. The situation that the harmonic generation quantity due to the concentration of the bank load is increased as compared with the past can be avoided, so that the optimal application of the system may be achieved.